The middle point of the segment of the straight line joining the points `(p, q) and (q,-p)` is `(r/2, s/2).` What is the length of the segment?

The co-ordinate of the mid-point of the line segment joining the points P(4, -6) and Q(-2, 4) is…..

The point P is the intersection of the straight line joining the points Q(2, 3, 5) and R (1, -1, 4) with the plane 5x- 4y-z=1. If S is the foot of the perpendicular drawn from the point T(2, 1, 4) to QR, then the length of the line segment PS is:

The point P is the intersection of the straight line joining the points Q(2,3,5) and R(1,-1,4) with the plane 5x-4y-z=1 . If S is the foot of the perpendicular drawn from the point T(2,1,4) to QR, then the length of the line segment PS is:

The point P is the intersection of the straight line joining the points Q (2, 3, 5) and R (1, - 1, 4) with the plane 5x - 4y - z = 1. If S is the foot of the perpendicular drawn from the point T (2, 1, 4) to QR, then the length of the line segment PS is:

The point P is the intersection of the straight line joining the points Q(2, 3, 5) and R (1, -1, 4) with the plane 5x- 4y-z=1 . If S is the foot of the perpendicular drawn from the point T(2, 1, 4) to QR, then the length of the line segment PS is:

What is the value of a if the mid-point of the line segment joining the points P(6,a-2) and Q(-2,4) is (2,-4) ?

Point A (2, -3) lies on the line segment joining the points P(-4,- 3) and Q (1, -3).

Find the direction cosines of the line segment joining the points P(2,3-6) and Q(3,-4,5)

What is the value of 'a' if the mid-point of the line segment joining the points P(6,a-2) and Q(-2, 4) is (2,-4)?